Patents by Inventor Wei-Chih Ke

Wei-Chih Ke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9488861
    Abstract: A display device includes a backlight module and a display panel. A spectrum of the backlight module has three peaks, so that the backlight module can emit a white light, wherein a full width at half maximum (FWHM) of the peak in a range of a green wavelength is less than or equal to 55 nm. The display panel is disposed on a light emitting surface of the backlight module, and includes a pixel array and a color filter array disposed correspondingly to the pixel array. The color filter array includes a red, a green and a blue filter patterns. The green filter pattern and the backlight module satisfy the following relations: ? 553 562 ? ? BL ? ( ? ) × CF Green ? ( ? ) × ?? ? 4 ? 580 600 ? ? BL ? ( ? ) × CF Green ? ( ? ) × ?? ? 2 ? 601 650 ? ? BL ? ( ? ) × CF Green ? ( ? ) × ?? ? 1.2 . Besides, a x coordinate of green light of CIE is less than 0.22 and a y coordinate of green light of CIE is greater than 0.70.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: November 8, 2016
    Assignee: Au Optronics Corporation
    Inventor: Wei-Chih Ke
  • Publication number: 20150003043
    Abstract: A display device includes a backlight module and a display panel. A spectrum of the backlight module has three peaks, so that the backlight module can emit a white light, wherein a full width at half maximum (FWHM) of the peak in a range of a green wavelength is less than or equal to 55 nm. The display panel is disposed on a light emitting surface of the backlight module, and includes a pixel array and a color filter array disposed correspondingly to the pixel array. The color filter array includes a red, a green and a blue filter patterns. The green filter pattern and the backlight module satisfy the following relations: ? 553 562 ? ? BL ? ( ? ) × CF Green ? ( ? ) × ?? ? 4 ? 580 600 ? ? BL ? ( ? ) × CF Green ? ( ? ) × ?? ? 2 ? 601 650 ? ? BL ? ( ? ) × CF Green ? ( ? ) × ?? ? 1.2 . Besides, a x coordinate of green light of CIE is less than 0.22 and a y coordinate of green light of CIE is greater than 0.70.
    Type: Application
    Filed: December 31, 2013
    Publication date: January 1, 2015
    Applicant: Au Optronics Corporation
    Inventor: Wei-Chih Ke
  • Publication number: 20130293810
    Abstract: A lighting device includes a support member provided with a wiring portion. The lighting device further includes an LED light source placed on the wiring portion, and an insulating layer. The insulating layer is provided on the wiring portion except a region at which the LED light source is placed. The LED light source is covered by a light-transmitting resin portion. A fluorescent substance is dispersed in the light-transmitting resin portion. The fluorescent substance is a sulfide-based fluorescent material.
    Type: Application
    Filed: March 25, 2013
    Publication date: November 7, 2013
    Inventors: Wei-Chih KE, Kun-Hung HSIEH, Hiroyoshi SAKAGUCHI
  • Patent number: 8563996
    Abstract: A luminescent light source including a blue light emitting diode (LED) chip, a red LED chip, and a wavelength converting material is provided. The blue LED chip and the red LED chip respectively emit a first light and a second light. A ratio of peak intensity of the second light to peak intensity of the first light ranges from 0.36 to 0.56. The wavelength converting material is disposed around the blue LED chip or the red LED chip and emits a third light. A wavelength of the third light ranges from a wavelength of the first light to a wavelength of the second light.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: October 22, 2013
    Assignee: Au Optronics Corporation
    Inventors: Wei-Chih Ke, Ruei-Teng Lin
  • Publication number: 20130113003
    Abstract: A luminescent light source including a blue light emitting diode (LED) chip, a red LED chip, and a wavelength converting material is provided. The blue LED chip and the red LED chip respectively emit a first light and a second light. A ratio of peak intensity of the second light to peak intensity of the first light ranges from 0.36 to 0.56. The wavelength converting material is disposed around the blue LED chip or the red LED chip and emits a third light. A wavelength of the third light ranges from a wavelength of the first light to a wavelength of the second light.
    Type: Application
    Filed: February 21, 2012
    Publication date: May 9, 2013
    Applicant: Au Optronics Corporation
    Inventors: Wei-Chih Ke, Ruei-Teng Lin
  • Publication number: 20120087108
    Abstract: An LED apparatus is disclosed. The LED apparatus includes a substrate, a cup structure, and a dividing structure. The dividing structure divides a containing space formed by the cup structure into a first region and a second region. A first blue-light chip and a first package colloidal are disposed in the first region and a second blue-light chip and a second package colloidal are disposed in the second region. A green-light phosphor is mixed in the second package colloidal to completely convert a monochromatic emission spectrum of a second blue-light band of the second blue-light chip into a monochromatic emission spectrum of a green-light band. The green-light phosphor is selected from one of silicate, oxynitride, lutetium aluminum oxide, and calcium scandium oxide.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 12, 2012
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Wei-Chih Ke, Chih-Lin Wang, Yu-Hsien Liu, Ruei-Teng Lin
  • Publication number: 20120075549
    Abstract: A white light emitting diode (LED) device includes a blue LED light source, a sealant material, a green phosphor material, and an orange phosphor material. The sealant material covers the blue LED light source. The green phosphor material distributed in the sealant material includes (Lu1-x-y-a-bYxGdy)3(Al1-zGaz)5O12:CeaPrb, wherein 0?x?1, 0?y?1, 0?z?0.1, 0?a?0.2, and 0?b?0.1. The orange phosphor material, which is also distributed in the sealant material, include the compound A, the compound B, or both. The compound A is (Sr1-x-y-zCaxBayMgz)2SiO4:Euw, wherein 0?x?1, 0?y?1, 0?z?1, and 0.03?w?0.2. The compound B is (M1)x(M2)y(Si,Al)12(O,N)16, wherein M1 represents Li, Mg, Ca, or Y, M2 represents Ce, Pr, Eu, Tb, Yb, or Er, 0.05?x+y?1.5, and 0?y?0.7.
    Type: Application
    Filed: August 5, 2011
    Publication date: March 29, 2012
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Ruei-Teng Lin, Wei-Chih Ke, Chih-Lin Wang